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js俄罗斯方块游戏

时间：2013-05-09 09:10 来源：互联网作者：源码搜藏收藏推荐

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<style>
div {width:20px; height:20px; position:absolute; border:1px solid black;}
.normal {background:white;}
.active {background:red;}
.fix {background:#333;}
#txt1 {position:absolute; left:250px;}
</style>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script type="text/javascript">
window.onload=function ()
{
 var rows=20;
 var cols=10;
 var i=0;
 var j=0;
 var k=0;
 var arr=[];
 var oTxt=document.getElementById('txt1');
 var aDiv=document.body.getElementsByTagName('div');
 
 oTxt.value=0;
 
 for(i=0;i<rows;i++)
 {
  arr[i]=[];
  
  for(j=0;j<cols;j++)
  {
   arr[i][j]=document.createElement('div');
   
   arr[i][j].style.top=i*24+'px';
   arr[i][j].style.left=j*24+'px';
   
   arr[i][j].className='normal';
   
   document.body.appendChild(arr[i][j]);
  }
 }
 
 var nowBlock={type: 0, cells: []};
 
 function createNewBlock()
 {
  var type=Math.ceil(Math.random()*5);
  var i=0;
  
  nowBlock.type=type;
  
  switch(type)
  {
   case 1:
    nowBlock.cells=[[0, cols/2-2], [0, cols/2-1], [0, cols/2], [0, cols/2+1]];
    break;
   case 2:
    nowBlock.cells=[[0, cols/2-2], [0, cols/2-1], [0, cols/2], [1, cols/2-2]];
    break;
   case 3:
    nowBlock.cells=[[1, cols/2-1], [1, cols/2], [1, cols/2+1], [0, cols/2]];
    break;
   case 4:
    nowBlock.cells=[[0, cols/2-1], [0, cols/2], [1, cols/2-1], [1, cols/2]];
    break;
   case 5:
    nowBlock.cells=[[0, cols/2-1], [0, cols/2], [1, cols/2], [1, cols/2+1]];
    break;
  }
  
  for(i=0;i<nowBlock.cells.length;i++)
  {
   if(arr[nowBlock.cells[i][0]][nowBlock.cells[i][1]].className=='fix')
   {
    finish();
    clearInterval(timer);
    document.onkeydown=null;
    return;
   }
  }
  
  for(i=0;i<nowBlock.cells.length;i++)
  {
   arr[nowBlock.cells[i][0]][nowBlock.cells[i][1]].className='active';
  }
 }
 
 function finish()
 {
  alert('哈哈，你输了，最终得分是：'+oTxt.value+'行，点击确定，重开一局吧！');
  window.location.reload();
 }
 
 function findFullLine()
 {
  var aResult=[];
  for(i=0;i<rows;i++)
  {
   var count=0;
   for(j=0;j<cols;j++)
   {
    if(arr[i][j].className=='fix')
    {
     count++;
    }
   }
   if(count==cols)
   {
    aResult.push(i);
   }
  }
  
  return aResult;
 }
 
 function clearAllFullLine(lines)
 {
  for(i=0;i<lines.length;i++)
  {
   for(j=lines[i];j>0;j--)
   {
    for(k=0;k<cols;k++)
    {
     arr[j][k].className=arr[j-1][k].className;
    }
   }
  }
 }
 
 function moveDown()
 {
  var i=0;
  
  //检测是否碰到底边
  for(i=0;i<nowBlock.cells.length;i++)
  {
   if(nowBlock.cells[i][0]+1==rows || arr[nowBlock.cells[i][0]+1][nowBlock.cells[i][1]].className=='fix')
   {
    for(i=0;i<nowBlock.cells.length;i++)
    {
     arr[nowBlock.cells[i][0]][nowBlock.cells[i][1]].className='fix';
    }
    createNewBlock();
    
    var fullLine=findFullLine();
    if(fullLine.length)
    {
     clearAllFullLine(fullLine);
     oTxt.value=parseInt(oTxt.value)+fullLine.length;
    }
   }
  }
  
  clear();
  for(i=0;i<nowBlock.cells.length;i++)
  {
   nowBlock.cells[i][0]++;
  }
  refresh();
 }
 
 function clear()
 {
  var i=0;
  for(i=0;i<nowBlock.cells.length;i++)
  {
   arr[nowBlock.cells[i][0]][nowBlock.cells[i][1]].className='normal';
  }
 }
 
 function refresh()
 {
  var i=0;
  
  for(i=0;i<nowBlock.cells.length;i++)
  {
   
   arr[nowBlock.cells[i][0]][nowBlock.cells[i][1]].className='active';
  }
 }
 
 function findMax(arr)
 {
  var maxX=0;
  var maxY=0;
  
  for(i=0;i<nowBlock.cells.length;i++)
  {
   if(maxX<nowBlock.cells[i][0])
   {
    maxX=nowBlock.cells[i][0];
   }
   if(maxY<nowBlock.cells[i][1])
   {
    maxY=nowBlock.cells[i][1];
   }
  }
  
  return {x: maxX, y: maxY};
 }
 
 function findMin(arr)
 {
  var minX=9999;
  var minY=9999;
  
  for(i=0;i<arr.length;i++)
  {
   if(minX>arr[i][0])
   {
    minX=arr[i][0];
   }
   if(minY>arr[i][1])
   {
    minY=arr[i][1];
   }
  }
  
  return {x: minX, y: minY};
 }
 
 function ration()
 {
  var tmp=0;
  var oMin=findMin(nowBlock.cells);
  var aNew=[];
  var aNew2=[];
  var aTmp=[];
  
  for(i=0;i<nowBlock.cells.length;i++)
  {
   aNew[i]=[nowBlock.cells[i][0]-oMin.x, nowBlock.cells[i][1]-oMin.y];
   aNew2[i]=[4-aNew[i][1], aNew[i][0]];
   //alert(aNew[i]+'->'+aNew2[i]);
   /*tmp=aNew[i][0];
   aNew[i][0]=aNew[i][1];
   aNew[i][1]=tmp;*/
  }
  
  var oMinTmp=findMin(aNew2);
  
  for(i=0;i<aNew2.length;i++)
  {
   aNew2[i][0]-=oMinTmp.x;
   aNew2[i][1]-=oMinTmp.y;
   
   //alert(aNew2[i]);
  }
  
  aNew=aNew2;
  
  for(i=0;i<nowBlock.cells.length;i++)
  {
   aTmp[i]=[oMin.x+aNew[i][0], oMin.y+aNew[i][1]];
  }
  
  for(i=0;i<nowBlock.cells.length;i++)
  {
   if(aTmp[i][0]<0 || aTmp[i][0]>=rows || aTmp[i][1]<0 || aTmp[i][1]>=cols || arr[aTmp[i][0]][aTmp[i][1]].className=='fix')
   {
    return;
   }
  }
  
  for(i=0;i<aTmp.length;i++)
  {
   nowBlock.cells[i]=aTmp[i];
  }
 }
 
 Array.prototype.dup=function (arr)
 {
  return [].concar(arr);
 };
 
 function findLeftColl()
 {
  var i=0;
  for(i=0;i<nowBlock.cells.length;i++)
  {
   if(nowBlock.cells[i][1]<=0 || arr[nowBlock.cells[i][0]][nowBlock.cells[i][1]-1].className=='fix')
   {
    return false;
   }
  }
  
  return true;
 }
 
 function findRightColl()
 {
  var i=0;
  for(i=0;i<nowBlock.cells.length;i++)
  {
   if(nowBlock.cells[i][1]>=cols-1 || arr[nowBlock.cells[i][0]][nowBlock.cells[i][1]+1].className=='fix')
   {
    return false;
   }
  }
  
  return true;
 }
 
 document.onkeydown=function (ev)
 {
  var oEvent=ev||event;
  
  //左 - 65
  //右 - 68
  //上 - 87
  //下 - 83
  
  switch(oEvent.keyCode)
  {
   case 65:
    if(findLeftColl())
    {
     clear();
     for(i=0;i<nowBlock.cells.length;i++)
     {
      nowBlock.cells[i][1]--;
     }
     refresh();
    }
    break;
   case 68:
    if(findRightColl())
    {
     clear();
     for(i=0;i<nowBlock.cells.length;i++)
     {
      nowBlock.cells[i][1]++;
     }
     refresh();
    }
    break;
   case 83:
    moveDown();
    break;
   case 87:
    clear();
    ration();
    refresh();
    break;
  }
 };
 
 createNewBlock();
 
 var timer=setInterval(moveDown, 1000);
};
</script>
</head>
<body>
<input id="txt1" type="text" readonly="1" />
</body>
</html>

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